[əbˈsɛs], (Verb)

Definitions:
- preoccupy or fill the mind of (someone) continually and to a troubling extent
(e.g: he was obsessed with the idea of revenge)


Phrases:

Origin:
late Middle English (in the sense ‘haunt, possess’, referring to an evil spirit): from Latin obsess- ‘besieged’, from the verb obsidere, from ob- ‘opposite’ + sedere ‘sit’. The current sense dates from the late 19th century